ATC LOUDSPEAKERS SCM300ASL Pro (single) — Studio Monitor
Large-format three-way active studio monitor with 34mm soft dome tweeter, 75mm midrange, and twin 15-inch bass drivers powered by dedicated 850W amplifier. Designed for medium-to-large control rooms and film re-recording stages, capable of 121dB SPL at 1 metre.
Specifications
Drivers
| Configuration | 3-way active |
|---|---|
| High-frequency (tweeter) | 34mm soft dome tweeter |
| Midrange | 75mm ATC "Super Dome" mid driver |
| Bass (LF) | Twin 15in (375mm) full-spec "SL" bass drivers |
Amplification
| Amplifier | Rack-mount ATC 4-way grounded-plane 850W amplifier |
|---|---|
| Amplifier class | Class A/B |
| Total amplifier power | 850W total |
| Bass output | Bass: 275 + 275W |
| Mid output | Mid: 200W |
| High output | High: 100W |
| Crossover filters | Even Order Critically Damped |
Acoustic Performance
| Amplitude linearity (±2dB) | ±2dB, 50Hz-12kHz |
|---|---|
| Cut-off frequencies (-6dB), free-standing | 25Hz-20kHz (free-standing) |
| Cut-off frequencies (-6dB), soffit-mounted | 20Hz-20kHz (soffit-mounted) |
| Max continuous SPL (1 metre) | 121dB @ 1m |
| Crossover frequencies | 380Hz and 3.5kHz |
| Horizontal dispersion | ±80° (coherent) |
| Vertical dispersion | ±10° (coherent) |
Inputs
| Input connector | Male XLR (balanced) |
|---|---|
| Input sensitivity | 2V |
| Input impedance | Balanced > 10kΩ |
Protection & Indicators
| Overload protection | Active FET momentary gain reduction plus thermal tweeter protection |
|---|---|
| Front panel indicators | Power On indicator, Gain Reduction (clip) warning |
Physical & Warranty
| Dimensions (HxWxD) | 884 x 925 x 460mm (34.8 x 36.4 x 18.7in) |
|---|---|
| Weight | 140kg (308lbs) per datasheet; atc.audio product page and some retailers list 87kg (191.4lbs) |
| Warranty | 6-year warranty |
Fit and constraints
Intended use
Constraints
To use it
Questions
Which connections, drivers, operating systems, and sample rates are supported by this exact revision?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
What cables, mounts, power supplies, or licenses are included?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Is the current retailer listing new stock, demo stock, open box, or special order?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Description
The ATC SCM300ASL Pro is a large-format, three-way active studio monitor from ATC (Acoustic Transducer Company / Loudspeaker Technology Ltd). It uses a 34mm soft dome tweeter, ATC's 75mm "Super Dome" midrange, and twin 15in (375mm) "SL" bass drivers, driven by a dedicated rack-mount ATC four-way grounded-plane 850W amplifier. It is intended as a main monitor for medium-to-large control rooms and film re-recording stages, with a max continuous SPL of 121dB at 1 metre and crossover points at 380Hz and 3.5kHz. This listing is for a single cabinet with its amplifier pack.